The Hottest White Dwarfs

Details The Hottest White Dwarfs The Hottest White Dwarfs

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004head....8.2526o&link_type=abstract

American Astronomical Society, HEAD meeting #8, #25.26; Bulletin of the American Astronomical Society, Vol. 36, p.958

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We present the first results of modeling extremely hot atmospheres (2 x 10(5) to 10(7) K) of white dwarfs undergoing hydrogen burning in a shell, observed with Chandra and XMM-Newton. A very bright supersoft X-ray source, N V4743 Sgr, is used as a ``template" to start this project. We find an effective temperature around 7x10(5) K and very depleted carbon abundance, as expected after the CNO cycle

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